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1953. This polygon shapefile represents the 1953 County Boundaries for China. The layer includes population census data and was primarily based on the "H... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.

1964. This polygon shapefile represents the 1964 County Boundaries for China. The layer includes population census data and was primarily based on the "H... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.

1982. This polygon shapefile represents the 1982 County Boundaries for China. The layer includes population census data and was primarily based on the "C... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.

1990. This polygon shapefile represents the 1990 County Boundaries for China. The layer includes population census data and was primarily based on the "T... Beijing Hua tong ren shi chang xin xi you xian ze ren gong si.